Chojnik [ˈxɔi̯nik] is a village in the administrative district of Gmina Morąg, within Ostróda County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 11 kilometres (7 mi) west of Morąg, 31 km (19 mi) north-west of Ostróda, and 51 km (32 mi) west of the regional capital Olsztyn.